Should I try to compete with Google page 1 top competition?

I have researched using my keyword search softwares and found over 100 keyword phrases with at least 5 keywords in each of these 100+ keyword phrases for some physical products.

These keyword phrases get from 100 to 3500+ searches monthly. I will be creating an affiliate product website as an affiliate for one one of the largest product retailers online. You can probably guess which one that is.

After going to Google to view my keywords, my 5-keyword phrases showed mostly Amazon, Walmart, Kmart, Biglots, Overstock, Target, Lowes, Homedepot on the first pages of Google, however I didn't find any exact matches for any of my keyword phrases. Google only showed a mix of the keyword phrases in various order or rather the pages that it found were only the closest match to those keyword phrases.

I will be creating exact-match domains with the 5-word keyword phrases.

I will be also using a lot of the best SEO methods including videos and content for my website(s) for top optimization so with that in mind do you think that it is worth it for me to still try to get my website on page 1 of Google and compete with the above major online retailers like Amazon, Walmart etc.?

I think that it can work and I can probably get some of my pages on Google page 1 because none of these major retailers have any keyword phrases that are matched exactly for my list of keywords.

So by using my SEO strategies this seems like a good idea even though these major online retailers have the top DA, PA, Rank Authority, backlinks etc. going for them.

What do you think? Has anyone tried this method? Please give me your thoughts. Thank you, Oliver